Datasheet > HV7100NG-GM903

HV7100NG-GM903

更新时间： 2024-11-08 19:45:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
8页	783K
描述
SPECIALTY ANALOG CIRCUIT

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中文翻译

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技术参数
数据手册

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HV7100NG-GM903 技术参数

是否Rohs认证：	符合	生命周期：	Active
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.58	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
Base Number Matches：	1

HV7100NG-GM903 数据手册

Supertex inc.

HV7100

24/48V Fan Driver/Controller

With High-Side Drive

Features

General Description

► High-side drive allows use of tachs

The HV7100 is an integrated PWM speed controller for driving

24 and 48VDC fans. The features and beneﬁts provided by the

HV7100 make driving fans simple and low cost. The HV7100

drives a high side external P-channel FET, allowing the use of

fans having a ground-based tachometer signal. It has a wide input

voltage range of +16 to +90V, ideal for +24 or +48V systems. No

low voltage supply is needed.

► Direct interface to host controller

► Noise-immune linear speed control

► 4-bit digital speed control

► Operates from single +24/+48V supply

► Programmable PWM frequency

► Undervoltage lockout

A 4-bit digital control input provides direct interfacing with a micro

controller or system processor to control the fan speed. It can

also be used as a stand-alone fan controller, via a thermistor

connection to the Linear Control pin.

Applications

► 24/48V chassis cooling tray

► Servers

► SAN equipment

The HV7100 has a wide PWM frequency range. When driving

fans directly with a PWM supply voltage, frequency may be set

low, around 50 - 120Hz. When used to drive fans requiring a DC

supply, an LC ﬁlter may be employed. In this case, PWM frequency

may be as high as 100kHz, reducing component sizes in the ﬁlter.

► Cellular and ﬁx wireless systems

► 24/48V PBX system

► Base stations

The HV7100 is an ideal device to incorporate in fan trays and fan

control modules, as it reduces circuit complexity and minimizes

parts count and overall cost for thermal management.

Typical Application Circuit

V_PP

VPP1 VPP2

speed control

enable

VGATE

DIN0 - DIN3

HV7100

Optional LC filter for

providing a DC fan drive

LIN

Host

Controller

OUT

VDD

GND

tach signals

Doc.# DSFP-HV7100

B072413

Supertex inc.

www.supertex.com

12 3 4 5 6 7 8

中文翻译

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